|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
|
|
|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
|
In Reply to: Re: C3g as driver for 300b posted by horny on June 18, 2006 at 15:30:39:
Friend of mine very much recomends it as a high transconductance pentode driver. His view is that for pentode drive you get best results from valves of the sort you are talking about.I haven't studied the valve, but for pentode operation you should ideally use a vr tube (paralleled with a series rc network to fix noise) as the stable screen voltage mechanism, plus a small cap screen to cathode (not ground).
For single ended (as opposed to differential) pentode operation you must use resistive load of very low value. Lowest you can get away with sufficient for enough voltage gain. Output impedance is effectively the value of this resistor, gain is increast the greater it's value, linearity particularly at high current low voltage end of the swing is improved the lower the value. You balance the situation for yourself.
Never use an inductive load or a ccs.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Re: C3g as driver for 300b - Paul Barker 21:47:27 06/18/06 (4)
- Re: C3g as driver for 300b - IslandPink 14:14:21 06/19/06 (2)
- Re: C3g as driver for 300b - Thorsten 16:02:36 06/19/06 (0)
- Re: C3g as driver for 300b - Paul Barker 14:24:21 06/19/06 (0)
- Where`s connected G3... - RM 07:08:24 06/19/06 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
